Pumping apparatus



Patented July 6, 1926.

UNITEDSTATES f 1,591,318.l A

HARRY c. Jomiivsniv, or CHICAGO; ILL'INoIsQ AssIeNoR 'ro sULnrvi-ANMACHINER coiurANr,y A.comomwioivrory-MAssAcHUsETTs.. .4 f

' PUMPING APPARMS.

Y Apliiaaonymeva January 13,* 192af 'serial No. 528,900.

My invention relatestodevices or'pumping Vby fluid pressure, and more particularly to pumping apparatusv ofthe displacementl type Y l An object of myV invention is to provide an improved pumping apparatus. Another object of my -invention is Yto provide an im proved vdisplacement pumping apparatus. A further object/of myY invention is to pr`ovide an improved controlling mechanism for a displacement vpumping, apparatus. objects and advantages Vofmyinvention Will hereinafter more fully appear.

In the accompanying drawings, Iha've ,shown forV purposes of villustration one form whichv mv invention may assume in practice.

AIn these ldrawings,-`` d Y Fig..1 is a side elevation of a displacement pumping system constructed according to the illustrativeembodiment of my invention. Fig. 2 is a view on a slightlylargei` scale in central vertical section through the dis- CII Cil

`placement tanks forming a part of my lpumping' apparatus.

Fig. 3 is a plan view of the;displacemeiit pumping mechanism vprovided 'with the illustrative 'form of -my'invention i' Y* ig. 4 is a central 'vertical section onthe lineHofFig. 3. I` 'l Fig. l5 is a central vertical section 'onthe line 5 5 of Fig. 3, with the valve disclosed in a different position from that occupiedl in Figs. 2 and 3.

-Theform of myninvention which have y selected'for illustrationl vand shallnow describe as the illustrative embodiment thereof will 4be noted to be employed in a displacenient pumping system f comprising a comy n ofoperation of my invention will tbe readily 8 and.9 and is discharged'from these .tanks by branch pipes 13 through checkvalves 14 to a discharge pipe 15 'when iuidfpressure is admitted to lthe tanks,'fthe-operation being controlled by the K falveymechanism 5; This mechanism 5 comprises 4a valve casing 16l Other l havingV bIe 17 illl Which a" `val-ve 18l`is Y i rotatably'dispos'ed. This valveisj'cutaaway on' its opposite sides to formvgroov'es 19 andy 20 which are adapted to :connect `a fluid pressure inlet connection21 and Van exhaust connection 22 alternately with'passages 23 and` 24 leading Vrespectively to the" pipes v7 v and Gand so to the tanks 9 andk'8. It will be with'an operating lever 25 to ywhich is conposition shownfin Fig. v5; The stem 26v is provided with .an a'rmature`28y with which an electromagnet cooperates andathisl electromagnet is' controlled by controlling 'lmeanswhich willnow be described."V

It vwill be notedthat .one "ofthe main Lno'tedkth'atV by means'of the valve 18 one of vthe tanks may be subjected to airl pressure 'from the receiver 3 while the other is vented to the atmosphere. The valve 1 8 is provided' nrr wires 3() is grounded tothe topov the ktank 8 while the Vother 3l" is connected jto the solenoid and it will benoted that the oppo-v site end of the'solenoid winding is connected to a plate 320i1 conducting material which is'insulated suitable gaskets `33 of insulating material .from a chamber formingv member 34 whosev interior is connected bya pipe 35'with the tank 8 adjacentthe top'thereot1 and With a T which'constitutes the junction between the p'pesn12 and 13 andthe tank 8 by Way of a pipe 36.v A check valve .37 per Vmitting the lovv,l downward ythrough the pipes 35 and 36 lis arranged betweenvthecasying 34 and the bottom of the tank 8.

From thel Jforegoing descriptionkthe mode apparentg` With they valve in the position indicated Y A the tank 8 will be vented to Vthe atmosphere while ythe tank 9 is being ydischarged and that liquid flows into the tank V8 "from the i line 10 as it islforced out of theV Asgthe l vsupply, tank'9 to the Vdischarge line'15.` Y liquid level rises in the :tank 8, itwill ulti-L tion'35 and flowing therethrough will en ter the chamber formed in..the"chamber in Fig.' 5,v it will benoted that `mately reachtherupper end ofthe {connec-r forming member 34'.Y 'As soonas the liquidl enters and suiliciently lls lthe 'chamber 34,

it will evidentlyco'nstitute va means for-closing the circuitl between the' casingl 34 and Piping vOff .the tank. 8 on4 the-goe@ hand maV the insulated plate 32 onthe other, it being noted that the distance through Which currentv must flow in the liquid to close the cir'- cuitis verysmall 'and so that-the resistance offered by the liquidwill be relatively small. As soon as the circuit is closed from Wire through the metal of tank 8, pipe 3a,

casingforming member Beg, the liquid-in theV chamberV in the member 34;, the insulated plate 32 and the Wire leading to the end of `.the solei'ioidA back through the solenoid to the other main 3l, the solenoid will be en- I ergiz'ed andy move the armature 28V to'` shift v Vbe de-energized and the spring `2'? will return theV valve- 18 to its original position and v theV tank v9. vvill thenv be discharged While the.' tank 8 is refilling. It Will be notedthat' the member 32is perforated to permit liquidto flow therethrough and it Will be further noted that if desired a pilot lswitch or relay Ycan be employed to control the circuit through the solenoid29 andV accordingly thatvthe currentrflow through the liquid may be. veryV small. vThis devicelWill evidently be very successful andwvell adapt'- ed yfor usev in pumpingY acids, etc., as there are Vno moving parts Whatever exposed to Vthe liquidA being pumped, the onlyli'mitation on its Vfield of utility being that it must be. used With liquidsy Which Will conduct electricity. v

While I Vhave-'in this application specifi-- callyy described one' form Which my invention may assume'in practice, it Will beV understood that this form of the same is shown forpurposes of illustration and the invention may Vbe modilied and rembodied in various-other forms Without dc'eparting` from its spirit or the ,scopeY of the appended claimsi p n Whatv I claim as new and desire to secure by Letters Patent is:Y A

1l. In combination with a plurality" of electrically controlled pumping mechanisms, liquidV circuit closing and opening means comprising Va single circuit.,

2. In combination With afiuid operated pumping mechanism, a single Aelectrically controlled v valve for Acontrolling lioiv vof `fluid to andv exhaust of fluid from said mechanism including a liquidl circuit-opening and closing Lineans, said circuit having onlystationary contact meansengaged by the liquidbeingpumped. l

3. ln vcombination YWith a plurality ofy pumping mechanisms, 'controlling` mechanismfor said pump vmechanismsincluding ionlya single circuit `adapt'edtobe closed by the liquid being pumped;

el. Ina fluid-'pressure pumping system, al

including valve mechanism adapted to con- Y trol fluid 'to and exhaust fluid from'said pump,v and electro-magnetic controlling means operative to positively' edect both of said valve mechanism Vfunctions Vand kincluding a circuit controlling saidk electro-magnetic means which is-opene'd and closed by 'the liquid being pumped, said circuit'vhaving only contacts adapted to be operated by con- `tact With said liquid;

6. In a plurality of displacement pumpingv systems, displacement tanks,mea ns to alternately render the lsame operative including fluid pressure vsupply and discharge means therefor including apumpinglfluid controlling valve, mechanical means for 'ac-V tuating said valve, liquid `supply and discharge means therefor, means for controlling said controlling valve including an electric circuit adapted to KVbe closed by the liquid being pumped, and a contact in said circuit, said contact closing the circuit and being submerged in the liquid until pump- 'ing'opens' said circuit.

7. ln a displacement pumping system, a plurality of'fdisplacement tanks, pumping fluid supply and exhaust means therefor includingY a valve, a solenoid controlling said valve andv current supply means for said 'solenoid including connections'from a source of current Vto said 'solenoid andwt'o one of said tanks, and a ,connection betweenjsaid solenoid and ay conductorelement insulated v 8. In a disp'lace'ment. pumping system,y

a plurality of displacement tanks, pumping Afluid supply and exhaust means therefor including a valve, a solenoid controlling said valve, current supply means for said solenoid including connections from a vsource of current to said solenoidand'to Vsaid latter tank, a, conductor elementV insulated from Asaid lattertank.and a *connectionl between said solenoid andsaid conductor element, said conductor element being arranged Y to be submerged by the 'li uid being pumped only after said latter tafik is filled and then ,to remain submerged until said tank is empty.

9. a displacement pumping system, a displacement tank, 'pumping fluid supply meansvand exhaust means thereforinclud-V ing a valve, a solenoid controlling said' valve, current supply means for said sole-- said tank and positioned adjacent the bottom thereof whereby Whenliquid closes the circuit between said tank and said conductor element said circuit will remain Closed until the tank is empty.

l0. In a displacement pumping system, a displacement tank, pumping fluid supply means, exhaust means therefor including a valve, a `solenoidV controlling said Valve, current supply means for said solenoid including connections from a source of current tov said solenoid-and to said tank, a conductor element insulated from'saidtank, aconnec-l tion between said solenoid and said conductoil element, said conductor element being mounted in a bypass communicating with the top and bottom of said tank and posi- L tioned adjacent the bottom thereof whereby Y when liquid closes the circuitbetween said.

tank and said conductor element said circuit will remain closed until the tank lis empty, and a 'check valveopening toward the bottom of said tank in said bypass.

11.Inv a displacement pumping system, a' displacementv pump ,including a tank, liquid supply and discharge connections for said tank,`a chamber of conducting material having insulatedly supported therein a conductorv member, said casing communicating with said tank adjacent the top Vand ybottom thereof, and means for controlling the supply and discharge of pumping fluid to said tank controlled by the-admission of pumping yfluid to said chamber.

12. In a displacement pumping system, a plurality of displacement pumping tanks, supply vand discharge connections for the liquid'to be pumped, supply and exhaustV connections for a pumping fluid, valve mechanism operative to positively control p the connection of said supply and exhaust connections to said tanks, and electromag-q.

netic means controlled by the liquid level in only one of said tanks forvcontrolling the position ofsaid valve.

'in the liquid being pumped, and means ture. Y 18. The combination comprising an elec- Y Y trically controlled pumping mechanism having ajplurality of substantially similar pumping elements, and means controlled byl a single element in contact Withthe liquid being pumped for causing continued alternate operation of saidelements.

14. The combinationk comprising an electrically controlled'v pumpingv mechanism having a plurality of substantially similar n pumping elements, and means' for alternately Vrendering 'the same operative including a single controllingelectrical circuit and liquidl circuit closing means.

V15. Ina displacement pumping system, a

plurality of alternately operable displacel ment pumpingtanks, and electrical means including contacts engaged by the liquid be;

ing pumpedfconnectedto only one of said tanks and adapted to control the pumpingv of the fluid in the remainder of-saidtanks.

16. In a displacementpump-ing system, a

plurality Vof alternately operable displace-V mentV pumping tanks actuated by pressure fluid, and electrical means connected to onlyl one of said vtanks adapted to control independently of said pressure fluid the pumping of the liquid in the other tanks in their proper order.

17. In combination with an electrically controlled pumping mechanism having la liquid container,jliquid circuit closing means comprising. a single circuit and having a contactadapted to be submerged in the liquid beingpumped only after said container is filled and then remain submerged vuntil said tank is'empty, said contact up on being submerged permitting said mechanism to pump said fluid,V and mechanical I means for stopping further pumping vaction v when ,said contact becomes unsubmer'ged.

' 18. In al combination with an electrically controlled pressure fluid operated pumpingA 'mechanism having a plurality `of alternately operable pumping elements, and means con'- v y trolled independently of said pressure fluid by ank element in contact .with the liquid being pumped causing continued operation of said elements, said electrical control in cluding only a single circuit.

19. In combination with controlled pumping mechanism having a liquid container, liquid circuit closing means 'mav an electrically Y having a contact adapted .to be submerged permitting overflow from the top of lsaid tank Y to effect said submergence.

In testimony whereof I afliir my signa- .HARRY C. JOHANSEN.

I Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,591,318, granted July 6, 1926, upon the application of Harry C. Johansen, of Chicago, Illinois, for an improvement in Pumping Apparatus, an error appears in the printed specification requiring correction as follows: Page 2, lines 87 and 88, claim 6, strike out In a plurality of displacement pumping' systems and insert In a' displacement pumping system, a plurality of; and that the said Letters Patent should be read With this correction therein that the same may coliform to the vrecord of the case in the Patent Office.

Signed and sealed this 81st day of August, A. D. 1926.

[SEAL] M. J. MOORE,

Acting Commissioner of Patents. 

